iterate through array with keys javascript code example

Example 1: iterate key value object javascript

'use strict';
// ECMAScript 2017
const object = {'a': 1, 'b': 2, 'c' : 3};
for (const [key, value] of Object.entries(object)) {
  console.log(key, value);
}

Example 2: js loop through associative array

var months = [];
months["jan"] = "January";
months["feb"] = "February";
months["mar"] = "march";

for (var key in months) {
    var value = months[key];
    console.log(key, value);
}